| 摘要 |
PROBLEM TO BE SOLVED: To provide a water-soluble flux that is a water-soluble flux compound for soldering, wherein, even in a flow soldering, no odor of amine or ammonia is perceived and soldering characteristics is hardly damaged. SOLUTION: There is provided a water-soluble flux for soldering which causes no perception of amine or ammonia odor while securing the soldering characteristics and joining reliability, and can be achieved by employing a water-soluble flux for soldering which is characterized by having a compound in which primary, secondary and tertiary amines having at least one hydroxyl group in a 2-10C hydrocarbon are added to a carboxyl group-containing rosin or an activator. The method for mounting an electronic circuit substrate using the same is also provided. COPYRIGHT: (C)2011,JPO&INPIT |
